Tank-car-heating means.



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WLLAM El'. TANGERMAN, OIE-HAMMON'D, INDMNA. V

Tm-CAR-HETING MEANS.

Specication oi' Letters Patent.

Application tiled April. 7, 1916. Serial. No. 89,676.

To all whom t may concern.'

-Be it known that I, WILLiAM J. Tettone MAN, a citizen of the United States, and resident of Hammond, Lake county, lndiana, have invented certain new and useful improvements in Tank-Car-Heating Means, oi' whichthe following is a specification.

'lhe general object of my invention is to improve the form, arrangement, construction and operation of the means for heating the contents of tank cars preparatory to and during the unloadinor thereof.

The principles andD main elements vof my invention, and also the details' of the best embodiment thereof that I haveY thus far devised, will be readily understood on reference to the drawings that form part of this specification, and are particularly point ed out in the appended claims.

ln said drawings Figure l is a side elevation of a tank carY embodyingmy invention, one haltl being in section to disclose the interior ,-Figz 2 is a vertical trans- 5 and 9;-li`ig 7 is a sectional detail of the center anchorage of the heating coil, on the line il-7 ot' Fig. 6;-Fig 8 is a detail of one of the,expansion-permitting clips. for the coils; Fig. 9 is an enlarged side view of the threeway steam valve on the side of the tank; and Fig. 10 is an enlarged section better showing said valve.

The unloader, D, is described and claimed in detail in my 3o-pending application, Serial No. 78,906, liled February 17, 1916, and the tanlt anchorage, C B, is described and claimed. in my co-pending application, Semi No. 84,559, filed March 1e, 191s.

t will be understood, that the coils, L and M, are steam coils or pipes, and are used 'for heating the contents ot" the tank, C. Each coil comprises several turns oi pipe andthe turns ot' each coil are spaced apart, thus making rooin'for the parallel turns of the other coil, as best. shown in Figs. 1, 5, and 6. Except for the diiicrent spacings and locations of the turns, characteristic of this arrangement, the two coils are essentially the same. The upper ends, m and l,

Aoff the unloader, D, which, as shown, is provided with separate outlet-ducts, d', d', for' of the coils are conveniently placed close together in one side of the tank.v being seper'ends of the coils and the bottom, C', of

the tank is determined by the number of` turns in the coils, and is the measure of the vfall or drop between the upper and lower ends or. the coils. The lower ends, m2, Z2, of

the coils, are secured in the top flange, d,

the two coils. rlChis last is a feature described and claimed in my. application, Serial No. 78,906. The projecting upper ends, Z and m, of the coils are joined by the casing,n, of the three-my valve,N. The coupling, Q, of a steam hose (through which the tank coils are supplied with steam from a distant source) is shown connected with the inlet, n2, ofthe valve casing. Within the casing, n, is the three-way valve plug, n3, having a squared-end, n4, to which a wrench may be applied, to turn the valve, n3, and direct steam into either one of the coils, or into bot-h of them, as desired. This is of advantage when conditions are suchthat the heat of only one coil is required, or in event one coil is broken; in both cases it is desirable to pass steam through only one coil. On the other hand, the arrangement makes it possible to hasten the heating of the contents of the tank by using both coils at the same time.

'Phe several turns of the coils find lsupport vupon thc coil-cradles, O and P. Each of these cradles P comprises a downwardly curved strap, 4, substantially followin r the curve of the tank, but spaced away t ererom. The upper ends of the straps, 4, are

-holted to brackets, 5, extending inwardly from the walls of the tank (see Figs. 5 and 6). The cradle, O, may have an additional supporting-strut, 6, as hereinafter mentionerh it will be noted that the cradles, and l), are arranged at substantially the same heights in the tank, there being a difference of only a few inches between heights ot' the cud-cradles, P, and the middle cradle, 0.

lousdering a single coil, cach turn thereof is madeoi several straight lengths of pipe, and two return-bends, 8; the coil being rectangular rather than circular, and extending 'from ond to ond of the tank, as woll as from side to side thereof, The end Patented Apr., 2, lglld.

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i sessies couplings, 9, between the straight lengths, 7, and the return-bends, 8, are preferably placed at the inner sides of the cradles, P, and do not interfere with the expansion and 'contraction ot' the straight portions, 7, of the coils. For convenience, I prefer that each straight length or side of the coil, shall be made up of two sections, 7, and these are joinedy by middle couplings, l0. As best shown in Figs. 6 and 7, each o1 these coi plings, 10 is provided with end-ianges,ll, U-clips, '112,'

'Which Straddle the strap, O4.

secured by nuts, 13, hold the couplings, l0, in lace on the strap, 104. `lhe bracket, or

strlp, 6, before mentioned, between the strap, 0', and the bottom of the tank, prevente the swinging of the cradle, in the tank. As thel cradle, 0, is thus made rigid, and as the couplings, 10, are rigidly secured to the rigid cradle, it follows that all of tbe turns of the coils,L and M, are edectiif'ely anchored at the middle or center of the tank. In contrast, the end portions of the coils are tied to respective cradles, P, by clips, lll,

- which have shoulders, le', that prevent the tightening of the clips, i4, to an extent 'Whichwould interfere with the nio'sf'ernent of the coils longitudinally across the cradles, P. By this arrangement the breaking of the 80 coils `by the expansion and contraction thereof is practically eliminated, as both ends of each turn oli' the coil are supported in a manner which permits them to expand and contract freely upon their cradles or snpm ports, though anchored at the middle. In this connection attention is called to the long return-bends, 8, which allow :tree Inovement between the connected straight portions of the coils;

40 'llhe feature of greatest importance characterizing the h'ating coils, is that they are self-drainin A further important characteristic or the duplex or'fdoublocoil arn rangement shown, is that the heat is dis-` tributed equally upon both sides oi the tank.

Taking into consideration the number of,

turns in the coil', the drop between the inlet and outlet ends thereof is not great, but in my novel arrangement of the coils, each is given ample inclination or pitch' to insure the free drainage ot the Water of condensa-- tion and the avoidance of steam trapsrnnd Water-hammering dilliculties. Contrary to i the usual arrangement, the two coils are not placed on opposite sides of the tank, nor in,

opposite ends thereof, but instead, each coil distributes as much of its heat in one side of the tank as in the other. This advantsge is secured by extending the coil alongn 'the side of the tank toward the end thereof, thence across the tanl-:to the opposite side, thence to the .opposite end of the tank, thence back across the tank, and thence back a-lonp,- the side, and so on, according to the number oi.2 turns required in the coil. As

charging through the be' illustrated, l take advantage of 'this division of the sides of each coil, upon opposite sides of the car to secure the necessary pitch in all parts of each coil. The coil which starts at the tl'iree-Way Valve connection, drops 70 gradually to its support upon the cud cradle, P, and extends thence to a somewhat lower point on the oppositeside of the saine cradle', l?, and from thence inclines gradually toward the opposite end et the car, Where itI ilinds similar supports ot diiii'erent elevan tions upon the cradle at that end of the tank. As each coil starts at high point, it is clear that as the turns from side 'to side of the tank they approach the ttoin 8u middle line thereof, and thus final 1 rniilnate at the nnloader as before desc Having thus described my i-` tion, 'l claim as non7 and :desireto oy llico te Patent zt5 l. The h erein described. iinprct prising the horizontal] tank, in with a duplex heating appare comprising; 'two .steam coil the side 'Wall ot through theh extending substa ioni end. to from side to sido oi'f me tank and being inclined throughout, and threemn'ay joining the inlet ends oit said coils. 95

2. T ie herein described improvement comprising the horizontal tank in, comb' tion with a duplex heating apparatus th nrre in, comprising two stearo coils ente ,y through the side Wall of? the tank and dis los charging; through the bottom thereof, each said. coil extending substantially :lrorn end to end and from. to e et the tank end being,r inclined througior and threes valve joining' the inet ends ci said coils on los the outer Walibi the tardi.

3. The herein .described improvement comprisingthe al tank i un LT,

through the side Wall oit' the om eno.

Vsuidcoil ezt-tending subst iitially tr to end and from side to eine oi' the t being inclined throughout, joining the inlet ci. outer Wall oi? the taai, unloader formi; o the charge ends ot sa d cons.

fi. The herein described improvement 12o comprising the liorisontal tank in confiloinan tion With a steam coil criteri throreeh the side wall oil' the tank and discharging through the bottoni thereof, said coil-er.- tendingl substantially from eno', to end and 12s `from side "to side ot" the tank and being` inclined throughout, and euri' eoil-cradles spaced in said tank and prei dinesuo'oorts for 'the varienel,` d t rns or. toil, means anche.. urns to one e ,said ttu rcinal for the 'menige i cradles, and other Inea'ns securing the same tank, each said coil extending substantially i upon the` other cradle, but permitting the from end to end and from side to side of the t free longitudinal expansion and contraction tank,'andbeing inclined throughout, valve n of said turns. s l i means forcontrolling the inlets of said pipes, 5 5. The herein described improvement and a hollow walled unloader forming the 15' comprising a horizontal tank, in combina terminal for the discharge ends of'said coils.` tion with a duplex heating-system therein, In testimony whereof, Ihave hereunto set comprisingtwo steam coils entering through my 'hand this 3rd day of Apri1,19rl6. the side Wall of ,the tank and discharging d 1o substantially centrally of the bottom of the LAM J. TANGERMAN. 

